CN211021819U - Learning chair for children - Google Patents

Abstract

The utility model relates to a children learning chair, which comprises a chair back, handrails and a chair seat, wherein two sides of the chair seat are respectively provided with a handrail frame, a lifting component and a locking component are arranged in the handrail frame, the lifting component is linked with the locking component, the handrail is elastically connected above the lifting component, the chair back is fixedly connected with the handrails, the locking component comprises a fixed shell and front and rear sliders, the fixed shell is fixedly arranged in the handrail frame, two side surfaces of the fixed shell are respectively provided with a plurality of vertically arranged adjusting fixing holes, at least one front and rear slider is arranged in the fixed shell and is clamped with the adjusting fixing holes through a convex column, the lifting component comprises a lifting strip and a lifting block, the lifting block is matched and connected with the front and rear sliders, the lifting strip is connected with the lifting block, the top of the lifting strip is provided with a handrail button, the handrail button is elastically connected with the handrails through an elastic piece, the structure of the utility, convenient operation and effectively improves the comfort of children.

Description

Learning chair for children

Technical Field

The utility model relates to a seat technical field indicates a children's study chair especially.

Background

The height of the armrests of the existing child chair cannot be adjusted generally, but the growth speed of the child is very high, and when the height of the armrests and the height of the chair back are too low, the comfort of the child is reduced, so that the child careless learning is caused, and the learning quality is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a children's study chair can adjust the height of handrail and the back of the chair at any time according to children's height, improves children's comfort.

In order to achieve the above object, the utility model adopts the following technical scheme: a child learning chair, which comprises a chair back, armrests and a chair seat, wherein the two sides of the chair seat are respectively provided with an armrest frame, a lifting component and a locking component are arranged in the armrest frame, the lifting component is connected with the locking component in a linkage way, a handrail is elastically connected above the lifting component, the chair back is fixedly connected with the handrail, the locking component comprises a fixed shell and front and rear sliding blocks, the fixed shell is fixedly arranged in the armrest frame, two side surfaces of the fixed shell are respectively provided with a plurality of vertically arranged adjusting fixed holes, at least one front and back sliding block is arranged in the fixed shell and is clamped with the adjusting fixed holes through a convex column, the lifting component comprises a lifting strip and a lifting block, the lifting block is connected with the front and the rear sliding blocks in a matching way, the lifting strip is connected with the lifting block, the top of the lifting strip is provided with a handrail button, and the handrail button is elastically connected with a handrail through an elastic piece.

Preferably, the side of the front and rear sliding blocks is provided with an opening, the opening is in a shape of a Chinese character 'ji', the lifting block is provided with a trapezoidal surface, and the trapezoidal surface is in matched butt joint with the opening to enable the front and rear sliding blocks to be in linkage connection with the lifting block.

Preferably, the number of the front and rear sliding blocks is two, and the two front and rear sliding blocks are elastically connected through an elastic piece.

Preferably, the fixed shell includes outer tube and inner tube, the outer tube passes through outer tube mounting fixed mounting in handrail frame, the both sides face of outer tube is equipped with respectively adjusts the fixed orifices, the inner tube is established in the outer tube, the inner tube bottom is equipped with the fixed box of slider, slider and elevator are established in the fixed box of slider around.

Preferably, the seat support includes backup pad, chassis and rotatory elevating system, be connected through rotatory elevating system between backup pad and the frame, the both sides of backup pad are equipped with handrail frame respectively, the backup pad top is equipped with the cushion, the chassis is equipped with a plurality of universal wheel.

Preferably, a pedal is arranged on the underframe.

Preferably, the fixing case is made of aluminum.

Preferably, the lifting bar is made of iron.

The beneficial effects of the utility model reside in that: the utility model discloses simple structure can adjust the high position of handrail and the back of the chair at any time through lifting unit and locking Assembly, and convenient operation effectively improves children's comfort.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a block diagram of the lift assembly and the locking assembly.

Fig. 3 is an exploded view of the lift assembly and locking assembly.

Fig. 4 is a perspective view of the front and rear sliders.

Fig. 5 is a perspective view of the elevator block.

Fig. 6 is a coupling structure diagram of the lifting assembly and the locking assembly.

Fig. 7 is a perspective view of the seat.

Description of reference numerals: 1. a chair seat; 11. a chassis; 12. a rotary lifting mechanism; 13. a support plate; 14. a handrail frame; 15. a pedal; 2. a chair back; 3. a locking assembly; 31. a stationary case; 311. an outer tube; 3111. adjusting the fixing hole; 312. an inner tube; 313. a slider fixing box; 314. an outer tube fixing member; 32. a front slider and a rear slider; 321. an opening; 322. a convex column; 4. a lifting assembly; 41. a lifting block; 411. a trapezoidal surface; 42. a lifting bar; 43. an armrest button; 5. a handrail.

Detailed Description

Please refer to fig. 1-7, the utility model discloses a children's study chair, including the back of the chair 2, handrail 5 and seat support 1, the both sides of seat support 1 are equipped with handrail 5 frame 14 respectively, be equipped with lifting unit 4 and locking Assembly 3 in handrail 5 frame 14, lifting unit 4 is connected with the linkage of locking Assembly 3, 4 top elastic connection of lifting unit has handrail 5, the back of the chair 2 and handrail 5 fixed connection, locking Assembly 3 can lock lifting unit to restriction handrail and the lift removal of the back of the chair, lifting unit 4 can remove the restriction of locking Assembly under the exogenic action, makes the handrail back of the chair lift removal.

Preferably, the locking assembly 3 includes a fixed shell 31 and front and rear sliders 32, the fixed shell 31 includes an outer tube 311, an inner tube 312, and a slider fixing box 313, the outer tube 311 is fixedly mounted in the armrest 5 frame 14 through an outer tube fixing member 314, two opposite side surfaces of the outer tube 311 are respectively provided with a plurality of vertically arranged adjusting fixing holes 3111, the inner tube 312 is disposed in the outer tube 311, bottom portions of two sides of the inner tube 312 are respectively provided with an opening 321 slot, the two slider fixing boxes 313 are disposed at the bottom of the inner tube 312, side surfaces of the slider fixing boxes 313 are provided with through holes corresponding to the positions of the opening 321 slots, the two front and rear sliders 32 are respectively slidably disposed in the two slider fixing boxes 313, the side surfaces of the front and rear sliders 32 are provided with openings 321, the openings 321 are in a shape of a "d", a convex post 311322 is disposed below the opening 321, the convex post 322 passes through the through, the two front and rear sliders 32 are elastically connected by a spring.

Preferably, the lifting assembly 4 includes lifting bars 42 and lifting blocks 41, the lifting blocks 41 are provided with trapezoidal surfaces 411, two lifting blocks 41 are respectively connected with the two front and rear sliding blocks 32 through the trapezoidal surfaces 411 and the openings 321 in a matching and abutting manner, the two lifting bars 42 respectively penetrate through the two sliding block fixing boxes 313 and are respectively connected with the two lifting blocks 41, the two lifting bars 42 are synchronously connected through a connecting piece, the top portions of the two lifting bars 42 are connected with armrest buttons 43, the armrest buttons 43 are elastically connected with the armrests 5 through springs, and the lifting blocks 41 can drive the two front and rear sliding blocks 32 to horizontally move relatively under the action of external force when moving up and down.

Preferably, the seat support 1 includes a supporting plate 13, an underframe 11 and a rotary lifting mechanism 12, the supporting plate 13 is connected with the frame through the rotary lifting mechanism 12, handrails 5 frames 14 are respectively arranged on two sides of the supporting plate 13, a cushion is arranged above the supporting plate 13, the underframe 11 is provided with a plurality of universal wheels, and a pedal 15 is arranged on the underframe 11.

Preferably, the fixing case 31 is made of aluminum.

Preferably, the lifting bar 42 is made of iron.

The working principle is as follows: external force acts on the lifting button, the lifting strip 42 is pulled to move upwards, the lifting strip 42 drives the lifting block 41 to move upwards, the lifting block 41 pushes the front and rear sliding blocks 32 to contract inwards through the inclined plane matching of the trapezoidal surface 411 and the opening 321, the convex column 322 is separated from the adjusting fixing hole 3111, the height positions of the armrest 5 and the chair back 2 can be adjusted at the moment, the external force is removed, the two front and rear sliding blocks 32 move outwards relatively under the elastic force action of the compressed spring, the convex column 322 is clamped in the adjusting fixing hole 3111, the lifting block 41 moves downwards to reset at the same time, the height positions of the armrest 5 and the chair back 2 are locked at the moment, and the armrest 5 and the chair back 2 cannot.

The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.

Claims (8)

1. The utility model provides a children's study chair, includes back of the chair, handrail and seat support, the both sides of seat support are equipped with handrail frame, its characterized in that respectively: be equipped with lifting unit and locking Assembly in the handrail frame, lifting unit is connected with the locking Assembly linkage, lifting unit top elastic connection has the handrail, the back of the chair and handrail fixed connection, locking Assembly includes set casing and preceding back slider, set casing fixed mounting is in handrail frame, the both sides face of set casing is equipped with the regulation fixed orifices of the vertical range of a plurality of respectively, at least one around the slider is established in the set casing and through the projection and adjust the fixed orifices joint, lifting unit includes lifting strip and elevator, the elevator couples with the cooperation of slider around with, lifting strip is connected with the elevator, lifting strip's top is equipped with the handrail button, the handrail button passes through elastic component and handrail elastic connection.

2. A child's learning chair as claimed in claim 1, wherein: the side of the front and rear sliding blocks is provided with an opening, the opening is in a shape of a Chinese character 'ji', the lifting block is provided with a trapezoidal surface, and the trapezoidal surface is in matched butt joint with the opening to enable the front and rear sliding blocks to be in linkage connection with the lifting block.

3. A child's learning chair as claimed in claim 1, wherein: the front sliding block and the rear sliding block are two and are elastically connected through an elastic piece.

4. A child's learning chair as claimed in claim 1, wherein: the fixed shell comprises an outer tube and an inner tube, the outer tube is fixedly installed in the armrest frame through an outer tube fixing piece, adjusting fixing holes are formed in two side faces of the outer tube respectively, the inner tube is arranged in the outer tube, a slider fixing box is arranged at the bottom of the inner tube, and the front slider and the rear slider and the lifting block are arranged in the slider fixing box.

5. A child's learning chair as claimed in claim 1, wherein: the seat support comprises a supporting plate, a bottom frame and a rotary lifting mechanism, the supporting plate is connected with the rack through the rotary lifting mechanism, the two sides of the supporting plate are respectively provided with a handrail frame, a cushion is arranged above the supporting plate, and the bottom frame is provided with a plurality of universal wheels.

6. A child's learning chair as claimed in claim 5, wherein: the chassis is provided with a pedal.

7. A child's learning chair as claimed in claim 1, wherein: the fixing case is made of aluminum.

8. A child's learning chair as claimed in claim 1, wherein: the lifting bar is made of iron.

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